Why would a rock have layers of different colors?
a. Layers of different sediments were pressed together?
b. A volcano erupted many times.
c. Wind and water changed he color of the rock.
d. The rock is from deep inside Earth.
What is a. Layers of different sediments were pressed together?
100
What is the hardest mineral on the Mohs scale?
a. talc
b. copper
c. apatite
d. diamond
What is d. diamond?
100
A naturally formed solid made of one or more minerals.
What is a rock?
200
A rock is made of at least one kind of...
What is mineral?
200
The breaking down of rocks into smaller pieces is...
What is weathering?
200
Which does NOT cause erosion or weathering?
a. ice
b. volcano
c. water
d. wind
What is b. volcano?
200
What is the softest mineral on the Mohs scale?
a. talc
b. copper
c. apatite
d. diamond
What is a. talc?
200
Rock formed from material that has settled into layers.
What is sedimentary rock?
300
The movement of rock and soil by wind or water is...
What is erosion?
300
A solid ade of one or more minerals is a ...
What is rock?
300
Which describes how some metamorphic rocks form?
a. Water freezes in cracks in rocks.
b. Melted rock cools and hardens.
c. Pressure changes a rock.
d. Rock pieces pile up in layers.
What is c. Pressure changes a rock?
300
Your teacher asks you to COMPARE two differen soils. What are three possible difference you should look for?
What is color of the soil, the size of the rock pieces in the soil (texture), and how much water the soil will hold?
300
An object that is solid, formed in natre, and has never been alive.
What is a mineral?
400
Pieces of dead plants and animals in soil is called...
What is humus?
400
Which of these is an effect of weathering?
a. Mountains are built.
b. Rocks are split.
c. Water freezes.
d. Volcanoes erupt.
What is b. rocks are split?
400
Which is NOT a way to identify a mineral?
a. by its hardness
b. by its outside color
c. by soaking it in water
d. by doing a streak test
What is c. by soaking it in water?
400
What is required to change a sedimentary rock into a metamorphic rock?
What is heat and pressure?
400
Color left behind by a mineral when it s rubbed against a rough white tile.
What is streak?
500
When you scratch a mineral, you are testing its...
What is hardness?
500
Which does NOT describe minerals?
a. are solid.
b. were formed in nature.
c. are all the same color.
d. have neve been alive.
What is c. are all the same color?
500
Which of the following is needed for a sedimentary rock to form?
a. high temperature and pressure
b. wind and water
c. melted rock
d. a volcano
What is b. wind and water?
500
Rock that was once melted and then cooled and hardened.